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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV2IFjAQAAAABh/tZh9GwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFwKAAD//y85Ijg=") r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./bus\x00', 0x40942, 0x0) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000140)='cpuacct.usage_percpu\x00', 0x275a, 0x0) r3 = open(&(0x7f0000000100)='./bus\x00', 0x141042, 0x0) fallocate(r3, 0x11, 0x100000000006, 0xfffd) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0) r4 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./sys/bus/platform/drivers/vhci_hcd/unbind\x00', 0x1, 0x0) r5 = socket$rds(0x15, 0x5, 0x0) bind$rds(r5, &(0x7f0000000000)={0x2, 0x0, @loopback}, 0x10) sendmsg$rds(r5, &(0x7f0000000380)={&(0x7f0000000140)={0x2, 0x0, @local}, 0x10, 0x0, 0x0, &(0x7f0000000300)=[@rdma_dest={0x18, 0x114, 0x2, {0xa, 0xd}}], 0x18, 0x40000}, 0x0) write(r4, &(0x7f0000000300)='vhci_hcd.0\x00', 0xb) fgetxattr(r0, &(0x7f0000000040)=@random={'osx.', '@\']@\x00'}, &(0x7f00000003c0)=""/77, 0x4d) write$binfmt_script(r2, &(0x7f00000000c0)={'#! ', './bus'}, 0x9) getsockopt(r4, 0x8, 0x4, &(0x7f0000000440)=""/162, &(0x7f0000000500)=0xa2) copy_file_range(r2, &(0x7f00000001c0), r1, 0x0, 0xffffffffa003e45c, 0x700000000000000) pwritev2(r1, &(0x7f0000000300)=[{&(0x7f0000000280)="1ee5", 0x2}], 0x1, 0x3, 0x60000000, 0x9) [ 105.247885][ T5289] Bluetooth: hci0: command tx timeout [ 105.287754][ T10] cfg80211: failed to load regulatory.db [ 105.803953][ T5326] loop0: detected capacity change from 0 to 32768 [ 105.837297][ T5326] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5326) [ 105.939059][ T5326] BTRFS info (device loop0): first mount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 [ 105.957976][ T5326] BTRFS info (device loop0): using blake2b checksum algorithm [ 106.132650][ T5326] BTRFS info (device loop0): enabling ssd optimizations [ 106.140183][ T5326] BTRFS info (device loop0): turning on async discard [ 106.151114][ T5326] BTRFS info (device loop0): enabling free space tree [ 106.154182][ T5326] BTRFS info (device loop0): use zstd compression, level 3 [ 106.312219][ T5326] vhci_hcd vhci_hcd.0: remove, state 4 [ 106.322891][ T5326] usb usb7: USB disconnect, device number 1 [ 106.673918][ T155] vhci_hcd vhci_hcd.0: stop threads [ 106.682153][ T5326] vhci_hcd vhci_hcd.0: USB bus 7 deregistered [ 106.689641][ T155] vhci_hcd vhci_hcd.0: release socket [ 106.702104][ T155] vhci_hcd vhci_hcd.0: disconnect device [ 106.715318][ T155] vhci_hcd vhci_hcd.0: stop threads [ 106.725686][ T155] vhci_hcd vhci_hcd.0: release socket [ 106.735215][ T155] vhci_hcd vhci_hcd.0: disconnect device [ 106.748211][ T155] vhci_hcd vhci_hcd.0: stop threads [ 106.755260][ T5326] vhci_hcd vhci_hcd.0: remove, state 4 [ 106.757557][ T155] ================================================================== [ 106.760740][ T155] BUG: KASAN: slab-use-after-free in vhci_shutdown_connection+0x1d4/0x650 [ 106.764116][ T155] Read of size 8 at addr ffff888034d489d0 by task kworker/u4:5/155 [ 106.767354][ T155] [ 106.768511][ T155] CPU: 0 UID: 0 PID: 155 Comm: kworker/u4:5 Not tainted syzkaller #0 PREEMPT(full) [ 106.768526][ T155] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 106.768534][ T155] Workqueue: usbip_event event_handler [ 106.768552][ T155] Call Trace: [ 106.768559][ T155] [ 106.768565][ T155] dump_stack_lvl+0xe8/0x150 [ 106.768585][ T155] print_address_description+0x55/0x1e0 [ 106.768601][ T155] ? vhci_shutdown_connection+0x1d4/0x650 [ 106.768614][ T155] print_report+0x58/0x70 [ 106.768628][ T155] kasan_report+0x117/0x150 [ 106.768644][ T155] ? vhci_shutdown_connection+0x1d4/0x650 [ 106.768660][ T155] vhci_shutdown_connection+0x1d4/0x650 [ 106.768674][ T155] event_handler+0x2a4/0x4b0 [ 106.768685][ T155] ? process_scheduled_works+0xa20/0x14e0 [ 106.768698][ T155] process_scheduled_works+0xa8e/0x14e0 [ 106.768718][ T155] ? __pfx_process_scheduled_works+0x10/0x10 [ 106.768732][ T155] ? assign_work+0x3cf/0x5d0 [ 106.768746][ T155] worker_thread+0xa47/0xfb0 [ 106.768766][ T155] kthread+0x388/0x470 [ 106.768783][ T155] ? __pfx_worker_thread+0x10/0x10 [ 106.768795][ T155] ? __pfx_kthread+0x10/0x10 [ 106.768811][ T155] ret_from_fork+0x514/0xb70 [ 106.768828][ T155] ? __pfx_ret_from_fork+0x10/0x10 [ 106.768843][ T155] ? __switch_to+0xc89/0x1420 [ 106.768858][ T155] ? __pfx_kthread+0x10/0x10 [ 106.768874][ T155] ret_from_fork_asm+0x1a/0x30 [ 106.768888][ T155] [ 106.768892][ T155] [ 106.829798][ T155] Allocated by task 1: [ 106.831879][ T155] kasan_save_track+0x3e/0x80 [ 106.834044][ T155] __kasan_kmalloc+0x93/0xb0 [ 106.836338][ T155] __kmalloc_noprof+0x375/0x720 [ 106.838514][ T155] __usb_create_hcd+0x67/0x900 [ 106.840509][ T155] vhci_hcd_probe+0x1e6/0x3e0 [ 106.842278][ T155] platform_probe+0xf9/0x190 [ 106.844159][ T155] really_probe+0x254/0xae0 [ 106.846106][ T155] __driver_probe_device+0x1e8/0x360 [ 106.848400][ T155] driver_probe_device+0x4f/0x240 [ 106.850464][ T155] __device_attach_driver+0x270/0x410 [ 106.852700][ T155] bus_for_each_drv+0x258/0x2f0 [ 106.854771][ T155] __device_attach+0x2c4/0x450 [ 106.856724][ T155] device_initial_probe+0xa1/0xd0 [ 106.858832][ T155] bus_probe_device+0x12a/0x220 [ 106.860848][ T155] device_add+0x7d7/0xb80 [ 106.862839][ T155] platform_device_add+0x4bd/0x860 [ 106.865278][ T155] platform_device_register_full+0x62d/0x710 [ 106.868139][ T155] vhci_hcd_init+0x227/0x360 [ 106.870236][ T155] do_one_initcall+0x250/0x870 [ 106.872412][ T155] do_initcall_level+0x10a/0x1a0 [ 106.874805][ T155] do_initcalls+0x59/0xa0 [ 106.876602][ T155] kernel_init_freeable+0x29d/0x3e0 [ 106.878626][ T155] kernel_init+0x1d/0x1d0 [ 106.880149][ T155] ret_from_fork+0x514/0xb70 [ 106.881755][ T155] ret_from_fork_asm+0x1a/0x30 [ 106.883333][ T155] [ 106.884159][ T155] Freed by task 5326: [ 106.885512][ T155] kasan_save_track+0x3e/0x80 [ 106.887062][ T155] kasan_save_free_info+0x40/0x50 [ 106.888752][ T155] __kasan_slab_free+0x5c/0x80 [ 106.890366][ T155] kfree+0x1c5/0x640 [ 106.891674][ T155] vhci_hcd_remove+0x9e/0x110 [ 106.893244][ T155] device_release_driver_internal+0x48b/0x880 [ 106.895689][ T155] unbind_store+0x1a1/0x1d0 [ 106.897500][ T155] kernfs_fop_write_iter+0x3a4/0x540 [ 106.899776][ T155] vfs_write+0x612/0xba0 [ 106.901774][ T155] ksys_write+0x150/0x270 [ 106.903872][ T155] do_syscall_64+0x174/0x580 [ 106.906089][ T155] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 106.908660][ T155] [ 106.909739][ T155] Last potentially related work creation: [ 106.912179][ T155] kasan_save_stack+0x3e/0x60 [ 106.914185][ T155] kasan_record_aux_stack+0xbd/0xd0 [ 106.916442][ T155] insert_work+0x3d/0x330 [ 106.918297][ T155] __queue_work+0xcd8/0x10a0 [ 106.920343][ T155] queue_work_on+0x106/0x1d0 [ 106.922405][ T155] unlink1+0x344/0x3e0 [ 106.924249][ T155] usb_hcd_unlink_urb+0xe6/0x1e0 [ 106.926230][ T155] usb_kill_urb+0x10b/0x2f0 [ 106.928141][ T155] hub_quiesce+0x211/0x330 [ 106.929972][ T155] hub_suspend+0x904/0xad0 [ 106.932021][ T155] usb_suspend_both+0x285/0x1040 [ 106.934171][ T155] usb_runtime_suspend+0x58/0x110 [ 106.936203][ T155] __rpm_callback+0x2c7/0x950 [ 106.938251][ T155] rpm_suspend+0x8a0/0x17b0 [ 106.940230][ T155] __pm_runtime_suspend+0x12f/0x1a0 [ 106.942321][ T155] usb_runtime_idle+0x76/0x90 [ 106.944481][ T155] rpm_idle+0x5b4/0x980 [ 106.946282][ T155] pm_runtime_work+0x11e/0x1b0 [ 106.948427][ T155] process_scheduled_works+0xa8e/0x14e0 [ 106.951052][ T155] worker_thread+0xa47/0xfb0 [ 106.953312][ T155] kthread+0x388/0x470 [ 106.955185][ T155] ret_from_fork+0x514/0xb70 [ 106.957154][ T155] ret_from_fork_asm+0x1a/0x30 [ 106.959229][ T155] [ 106.960312][ T155] Second to last potentially related work creation: [ 106.963085][ T155] kasan_save_stack+0x3e/0x60 [ 106.965138][ T155] kasan_record_aux_stack+0xbd/0xd0 [ 106.967302][ T155] insert_work+0x3d/0x330 [ 106.969162][ T155] __queue_work+0xcd8/0x10a0 [ 106.971178][ T155] queue_work_on+0x106/0x1d0 [ 106.973162][ T155] usb_hcd_submit_urb+0xa3b/0x1b60 [ 106.975318][ T155] usb_start_wait_urb+0x13f/0x5b0 [ 106.977368][ T155] usb_control_msg+0x234/0x3e0 [ 106.979357][ T155] hub_suspend+0x891/0xad0 [ 106.981309][ T155] usb_suspend_both+0x285/0x1040 [ 106.983414][ T155] usb_runtime_suspend+0x58/0x110 [ 106.985601][ T155] __rpm_callback+0x2c7/0x950 [ 106.987630][ T155] rpm_suspend+0x8a0/0x17b0 [ 106.989556][ T155] __pm_runtime_suspend+0x12f/0x1a0 [ 106.991939][ T155] usb_runtime_idle+0x76/0x90 [ 106.994080][ T155] rpm_idle+0x5b4/0x980 [ 106.995960][ T155] pm_runtime_work+0x11e/0x1b0 [ 106.998014][ T155] process_scheduled_works+0xa8e/0x14e0 [ 107.000438][ T155] worker_thread+0xa47/0xfb0 [ 107.002301][ T155] kthread+0x388/0x470 [ 107.003894][ T155] ret_from_fork+0x514/0xb70 [ 107.005873][ T155] ret_from_fork_asm+0x1a/0x30 [ 107.008041][ T155] [ 107.009174][ T155] The buggy address belongs to the object at ffff888034d48000 [ 107.009174][ T155] which belongs to the cache kmalloc-8k of size 8192 [ 107.015259][ T155] The buggy address is located 2512 bytes inside of [ 107.015259][ T155] freed 8192-byte region [ffff888034d48000, ffff888034d4a000) [ 107.020902][ T155] [ 107.021946][ T155] The buggy address belongs to the physical page: [ 107.024746][ T155] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34d48 [ 107.028241][ T155] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 107.031849][ T155] flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff) [ 107.034773][ T155] page_type: f5(slab) [ 107.036660][ T155] raw: 04fff00000000040 ffff88801b042280 dead000000000122 0000000000000000 [ 107.040456][ T155] raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000 [ 107.043901][ T155] head: 04fff00000000040 ffff88801b042280 dead000000000122 0000000000000000 [ 107.047397][ T155] head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000 [ 107.050730][ T155] head: 04fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff [ 107.054426][ T155] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 107.058263][ T155] page dumped because: kasan: bad access detected [ 107.061183][ T155] page_owner tracks the page as allocated [ 107.063690][ T155] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 27590008686, free_ts 27584264285 [ 107.072335][ T155] post_alloc_hook+0x1f9/0x250 [ 107.074534][ T155] get_page_from_freelist+0x21fa/0x2270 [ 107.077007][ T155] __alloc_frozen_pages_noprof+0x18d/0x380 [ 107.079545][ T155] allocate_slab+0x79/0x5e0 [ 107.081420][ T155] refill_objects+0x2d5/0x350 [ 107.083470][ T155] __pcs_replace_empty_main+0x2bf/0x6b0 [ 107.085825][ T155] __kmalloc_noprof+0x485/0x720 [ 107.087956][ T155] __usb_create_hcd+0x67/0x900 [ 107.090245][ T155] vhci_hcd_probe+0x104/0x3e0 [ 107.092459][ T155] platform_probe+0xf9/0x190 [ 107.094655][ T155] really_probe+0x254/0xae0 [ 107.096643][ T155] __driver_probe_device+0x1e8/0x360 [ 107.098879][ T155] driver_probe_device+0x4f/0x240 [ 107.101041][ T155] __device_attach_driver+0x270/0x410 [ 107.103384][ T155] bus_for_each_drv+0x258/0x2f0 [ 107.105626][ T155] __device_attach+0x2c4/0x450 [ 107.107710][ T155] page last free pid 37 tgid 37 stack trace: [ 107.110302][ T155] __free_frozen_pages+0xc1e/0xd10 [ 107.112712][ T155] __slab_free+0x274/0x2c0 [ 107.114864][ T155] qlist_free_all+0x99/0x100 [ 107.116998][ T155] kasan_quarantine_reduce+0x148/0x160 [ 107.119347][ T155] __kasan_slab_alloc+0x22/0x80 [ 107.121450][ T155] kmem_cache_alloc_node_noprof+0x355/0x610 [ 107.124055][ T155] dup_task_struct+0x52/0x8e0 [ 107.126122][ T155] copy_process+0x820/0x4390 [ 107.128088][ T155] kernel_clone+0x2d7/0x940 [ 107.130091][ T155] user_mode_thread+0x110/0x180 [ 107.132328][ T155] call_usermodehelper_exec_work+0x5c/0x230 [ 107.134948][ T155] process_scheduled_works+0xa8e/0x14e0 [ 107.137372][ T155] worker_thread+0xa47/0xfb0 [ 107.139436][ T155] kthread+0x388/0x470 [ 107.141102][ T155] ret_from_fork+0x514/0xb70 [ 107.142984][ T155] ret_from_fork_asm+0x1a/0x30 [ 107.145043][ T155] [ 107.146081][ T155] Memory state around the buggy address: [ 107.148489][ T155] ffff888034d48880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 107.152046][ T155] ffff888034d48900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 107.155728][ T155] >ffff888034d48980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 107.158954][ T155] ^ [ 107.161534][ T155] ffff888034d48a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 107.164723][ T155] ffff888034d48a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 107.167974][ T155] ================================================================== [ 107.181080][ T5326] usb usb6: USB disconnect, device number 1 [ 107.293744][ T5326] vhci_hcd vhci_hcd.0: USB bus 6 deregistered